From 0c6e2d518c324a359b6d39c1016c57ca515f9945 Mon Sep 17 00:00:00 2001
From: Sudarsana Babu Nagineni <sudarsana.babu@mapbox.com>
Date: Thu, 26 Jul 2018 17:26:57 +0300
Subject: [PATCH] Fix compilation errors on OSX (#77)

This fixes compilation errors on OSX when -Werror,
-Wshorten-64-to-32 flags are passed to the compiler.
---
 include/mapbox/geojsonvt/simplify.hpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/mapbox/geojsonvt/simplify.hpp b/include/mapbox/geojsonvt/simplify.hpp
index b69ae7e..784f085 100644
--- a/include/mapbox/geojsonvt/simplify.hpp
+++ b/include/mapbox/geojsonvt/simplify.hpp
@@ -37,8 +37,8 @@ inline double getSqSegDist(const vt_point& p, const vt_point& a, const vt_point&
 inline void simplify(std::vector<vt_point>& points, size_t first, size_t last, double sqTolerance) {
     double maxSqDist = sqTolerance;
     size_t index = 0;
-    const int32_t mid = (last - first) >> 1;
-    int32_t minPosToMid = last - first;
+    const int64_t mid = (last - first) >> 1;
+    int64_t minPosToMid = last - first;
 
     for (auto i = first + 1; i < last; i++) {
         const double sqDist = getSqSegDist(points[i], points[first], points[last]);
@@ -51,7 +51,7 @@ inline void simplify(std::vector<vt_point>& points, size_t first, size_t last, d
             // a workaround to ensure we choose a pivot close to the middle of the list,
             // reducing recursion depth, for certain degenerate inputs
             // https://github.com/mapbox/geojson-vt/issues/104
-            auto posToMid = std::abs(static_cast<int32_t>(i) - mid);
+            auto posToMid = std::abs(static_cast<int64_t>(i) - mid);
             if (posToMid < minPosToMid) {
                 index = i;
                 minPosToMid = posToMid;